Question

List at least three shapes, other than hexagons, In the table. If the shape is a polygon, indicate whether the shape is regular or irregular. Find the number of lines of reflection that will map each shape back on to itself when the shape flips about the line. Also describe the position of the line of reflection.

Answer 1

Shape Number of Lines of Reflection Description

equilateral triangle 3 3 perpendicular bisectors of the sides

regular heptagon 7 7 perpendicular bisectors of the sides

regular octagon 8 4 perpendicular bisectors and 4 lines joining pairs of opposite vertices

Explanation: